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[dxbc] Implement precise flag

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May fix depth precision in Skyrim SE (issue #189).
This commit is contained in:
Philip Rebohle 2018-04-20 23:32:51 +02:00
parent f52cc3859b
commit 50f1cf007d
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GPG Key ID: C8CC613427A31C99
2 changed files with 10 additions and 0 deletions
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6
src/dxbc/dxbc_compiler.cpp
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@ -1564,6 +1564,9 @@ namespace dxvk {
return;
}
if (ins.controls.precise())
m_module.decorate(dst.id, spv::DecorationNoContraction);
// Store computed value
dst = emitDstOperandModifiers(dst, ins.modifiers);
emitRegisterStore(ins.dst[0], dst);
@ -1786,6 +1789,9 @@ namespace dxvk {
src.at(0).id,
src.at(1).id);
if (ins.controls.precise())
m_module.decorate(dst.id, spv::DecorationNoContraction);
dst = emitDstOperandModifiers(dst, ins.modifiers);
emitRegisterStore(ins.dst[0], dst);
}

4
src/dxbc/dxbc_decoder.h
View File

@ -309,6 +309,10 @@ namespace dxvk {
return bit::extract(m_bits, 11, 16);
}
bool precise() const {
return bit::extract(m_bits, 19, 22) != 0;
}
private:
uint32_t m_bits;